Thank you very much for the frame grab, it's absolutely impressive that the smaller sensor can do this! The shirt is amazing. Did you use an external recorder?
Yeah, I was very surprised by the image the GH4 can produce when properly tweaked. This is the crappy GH4 internal 4K UHD 8-bit 4:2:2 100 Mbits internal recording, so I imagine using an external recorder at 4K DCI 10-bit 4:2:2 would take things even further. ( and you could switch to a sharper Lumix lens if absolute sharpness is your thing )
Also thanks for info about the other cameras - I'll definitely look into the FS7 (I' already looked at the C100, but wasn't really blown away).
You need to shoot with an external recorder on the C100 to see what it can really do. ( Canon's internal bit rates are kind of low )
BUT I still have to say that I've seen nothing, ever, that competes with the Otus/A7s frames I just linked to. Perhaps it's just me, but I'm baffled...
I honestly think you are being swayed by the studio lighting. I know I could virtually duplicate this shot with my GH4 with an external recorder and a Lumix prime lens.
Also, I wasn't aware that the first A7s is a bit better than the second. Seems it would be better to get an A7s+recorder than an A7sii, then.
I don't know if I would say that it's better ( it doesn't do internal 4K, but then it doesn't overheat when shooting 4K with an external recorder ), but it would be very tempting to get a used A7S Mk1 and then buy an external recorder to go with it. ( and probably pay the same price as a new A7S Mk2 )